diff --git a/Gemfile.lock b/Gemfile.lock
index 14e1164c..0b776a5b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -696,7 +696,7 @@ GEM
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.0)
+    uglifier (4.2.1)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (2.5.0)
     uri (0.13.0)